I like my M70 Fwt in 7mm-08. I haven't killed a lot of deer with it, but can't tell any difference in killing effectiveness between it & 270 Winchester or 280 Remington.

I do really like shooting 120 gr bullets in it however as the reduction in recoil is noticeable then. With the 140 gr bullet weight, I couldn't really tell any difference in the recoil in my 7mm-08 and my 270 Winchester with 130 gr bullets.

If you get a 7mm-08, I'd suggest getting someone to load you ammunition with 120 gr bullets or try buying Nosler Custom Ammunition with the 120 gr Nosler Ballistic Tip - I think you'd like it.

My (albeit limited) experience FWIW.